src/macosx/classes/sun/lwawt/macosx/CPlatformEmbeddedFrame.java

*** 64,73 ****
--- 64,79 ----
      public long getLayerPtr() {
          return windowLayer.getPointer();
      }
  
      @Override
+     public long getViewPtr() {
+         //Embedded frame is not view-backed
+         return 0;
+     }
+ 
+     @Override
      public void dispose() {
          windowLayer.dispose();
      }
  
      @Override